Modular Tire Moulding Elements with Interlocking Notches
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Solution Overview
Problem
Existing moulding element networks for tyre treads face issues with deformations, high manufacturing costs due to large-size requirements, and the need for scrapping entire networks when a single element is non-compliant, while existing architectures restrict flexibility and shape functionality.
Innovation Solution
A set of moulding elements with an assembly means that allows connection between elements via notches, enabling robust interlocking and flexible positioning, which can be produced by laser sintering and assembled in a mould for improved mechanical integrity and manufacturing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If moulding elements are produced integrally by laser sintering as a large-size network, then manufacturing automation is improved, but manufacturing precision deteriorates due to deformations under manufacturing conditions
Solution Approach 1:
The patent divides the moulding elements into separate individual components rather than producing them as a single large network. Each moulding element can be manufactured independently by laser sintering, then assembled using the assembly means, thereby reducing deformations while maintaining automated manufacturing benefits
Solution Approach 2:
The invention introduces a new assembly dimension by adding assembly means (notches and protrusions) that enable modular assembly of separately manufactured elements, transforming the approach from monolithic network production to modular component assembly
2Productivity
If a large-size network of moulding elements is manufactured, then productivity is improved, but device complexity increases due to requiring specialized laser sintering machines and plates
Solution Approach 1:
By segmenting the moulding elements into smaller individually manufacturable units, the patent enables production on standard laser sintering equipment rather than requiring specialized large-format machines and plates, thereby reducing device complexity while maintaining productivity
Solution Approach 2:
The assembly means are integrated into each moulding element during manufacturing, preparing them for subsequent assembly operations. This preliminary integration of assembly features simplifies the overall manufacturing system requirements
3Ease of manufacture
If moulding elements are assembled using enlarged portions, then ease of manufacture is improved, but manufacturing precision deteriorates due to impact on shape and function of cuts
Solution Approach 1:
The assembly means are designed with notches and protrusions that are localized to specific regions of the moulding elements, allowing the majority of each element to maintain its precise original shape and cutting function while providing dedicated areas for assembly operations
Solution Approach 2:
The assembly means act as an intermediary mechanism that connects moulding elements without directly altering the cutting edges or functional portions, thereby maintaining manufacturing precision while enabling easy assembly
4Adaptability or versatility
If a network of moulding elements is designed with high flexibility in positioning, then adaptability is improved, but reliability deteriorates due to increased risk of deformations and assembly issues
Solution Approach 1:
The modular segmented design allows flexible positioning of individual elements while each element maintains its structural integrity independently, reducing the propagation of deformations and improving overall reliability
Solution Approach 2:
The assembly means with interlocking notches and protrusions provide built-in alignment and positioning features that prevent assembly errors and ensure consistent positioning, thereby maintaining reliability while enabling adaptability
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides a robust and flexible set of moulding elements that maintain mechanical integrity during tyre curing, reduces manufacturing costs, and allows for complex shapes, enabling efficient production and assembly within desired tolerances.
Implementation Method 1
an assembly means designed for joining one of the ends of the first moulding element to one of the ends of the second moulding element by insertion into at least one notch provided in the assembly means
Implementation Method 2
The different moulding elements can be produced by laser sintering, making it possible to obtain very complex moulding element shapes
Data Source
AI summary
A set of moulding elements, designed to be inserted into a mould for moulding a tyre, comprises: at least one first moulding element (1) and one second moulding element, each moulding element extending in a main moulding-element direction (EM) between two ends (3) of the moulding element with one of the ends (3) of the first moulding element connecting to one of the ends (3) of the second moulding element along an axis (MA), which is substantially perpendicular to the main moulding-element axis (EM).